In this example, radio buttons are used to choose the options for a product. Both the drive size of the iPod and the iPod's cost is controled by the radio button options.

Better Yet

Time for the world?s best music player to take the stage for another encore. In 30GB and 60GB models that hold up to 15,000 songs, full-color album art and up to 25,000 photos, the new iPod makes the most of your music and more. Yeah, you?ve heard that tune before. Only now, you can watch it, too. With support for up to 150 hours of video and a 2.5-inch color display, the new iPod lets you take music videos and TV shows on the road.